World of Ruin monsters cannot be found in the World of Balance; unique monsters are found as set encounters or treasure guardians, but never in a random battle; legendary dragons are unique monsters that are found in the World of Ruin; special bosses have unique music and immense power; the final bosses are the last creatures fought in the game

The estimated average amount of damage this monster's attack will deal to a target with 128 Defense; actual damage will vary considerably based on the target's Defense and other factors, but this is a good measure of the relative danger of monster's attacks